Which out of the four ports of 8051 needs a pull-up resistor for using it is as an input or an output port?

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answerhappygod
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Which out of the four ports of 8051 needs a pull-up resistor for using it is as an input or an output port?

Post by answerhappygod »

a) PORT 0
b) PORT 1
c) PORT 2
d) PORT 3
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